发布时间:2025-01-19 23:22:49
非岩石地基应设沉降缝。每4~6米设置一道,缝宽1~2cm,,缝内用沥青麻絮或其他具有弹性的防水材料堵塞,以防止不均匀沉降时涵洞开裂。
jomoo 九牧 26088316471b51 恒温淋浴花洒套装详细介绍
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